body {
    background-color: #f3f5f7;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

.header {
    height: 42px;
    padding: 30px 0;
}

.header .logo {
    float: left;
    width: 195px;
    height: 42px;
    margin-right: 56px;
    background: url('../images/logo.png') no-repeat;
}

.header .nav {
    float: left;
    line-height: 42px;
}

.header .nav li {
    float: left;
    margin: 0 24px;
}

.header .nav li a{
    display: block;
    color: #050505;
    padding: 0 9px;
}

.header .nav li a:hover{
    color: #00a4ff;
    border-bottom: 2px solid #00a4ff;
}

.header .search {
    float: left;
    margin-left: 70px;
    width: 412px;
    height: 42px;
    background: pink;
}

.header .search input {
    float: left;
    width: 340px;
    height: 40px;
    border: 1px solid #00a4ff;
    outline: none;
    padding-left: 20px;
    font-size: 14px;
    color: #bfbfbf;
}

.header .search button {
    float: left;
    width: 50px;
    height: 42px;
    background: url('../images/btn.png');
    border: 0;
}

.header .username {
    float: left;
    margin-left: 30px;
    line-height: 42px;
    font-size: 14px;
    color: #666;
}

.header .username img {
    vertical-align: middle;
    margin-right: 5px;
}

.swiper {
    height: 420px;
    background: #1c036c;
}

.swiper .container {
    height: 420px;
    background: url('../images/banner2_20190819_210028.png') center;
}

.swiper .navbar {
    float: left;
    width: 150px;
    padding: 12px 20px;
    background: rgba(0, 0, 0, .3);
}

.swiper .navbar li {
    line-height: 44px;
    font-size: 14px;
}

.swiper .navbar li a{
    color: #fff;
}

.swiper .navbar li em{
    float: right;
    color: #fff;
    font-style: normal;
}

.swiper .navbar li:hover a,
.swiper .navbar li:hover em {
    color: #00a4ff;
}

.swiper .right-title{
    float: right;
    width: 228px;
    height: 300px;
    margin-top: 50px;
    background: #fff;
}

.swiper .right-title .course-title {
    height: 48px;
    color:#fff;
    font-size: 18px;
    line-height: 48px;
    text-align: center;
    background: #9bceea;
}

.swiper .list-box {
    padding: 0 20px;
    background: #fff;
}

.swiper .list-box li{
    padding: 12px 0;
    color: #4e4e4e;
    border-bottom: 1px solid #e5e5e5;
}

.swiper .list-box li h4{
    font-size: 16px;
    font-weight: normal;
}

.swiper .list-box li i{
    margin-left: 3px;
    font-style: normal;
    font-size: 14px;
}

.swiper .list-box li p{
    font-size: 12px;
    color: #a5a5a5;  
}

.swiper .all-course {
    height: 41px;
    border: 1px solid #00a4ff;
    margin-top: 5px;
    text-align: center;
    line-height: 41px;
    color: #00a4ff;
}

.recommend {
    margin-top: 8px;
    height: 60px;
    line-height: 60px;
    background: #fff;
    box-shadow: 0px 2px 3px 0px rgba(118, 118, 118, 0.2);
}

.recommend li {
    float: left;
    font-size: 16px;
}

.recommend li.first a{
    color: #00a4ff;
    border: 0;
}

.recommend li a{
    color: #050505;
    padding: 0 30px;
    border-left: 1px solid #bfbfbf;
}

.recommend .last {
    float: right;
    font-size: 14px;
    margin-right: 26px;
    color: #00a4ff;
}

.course-box {
    margin-top: 36px;
}

.course-box .course-header {
    margin-bottom: 20px;
}

.course-box .course-header h3{
    float: left;
    font-size: 20px;
    color: #494949;
    font-weight: normal;
}

.course-box .course-header a{
    float: right;
    margin-right: 30px;
    color: #a5a5a5;
    font-size: 12px;
}

.course-box ul li {
    float: left;
    width: 228px;
    height: 270px;
    background: #fff;
    margin-right: 15px;
    margin-bottom: 15px;
}

.course-box ul li:nth-child(5n) {
    margin-right: 0;
}

.course-box ul li img{
    width: 228px;
    display: block;
}

.course-box ul li .info-title{
    padding: 25px;
}

.course-box .info-title h4{
    color: #050505;
    font-size: 14px;
    line-height: 20px;
    font-weight: normal;
}

.course-box .info-title p{
    margin-top: 15px;
    color: #ff7c2d;
    font-size: 12px;
}

.course-box .info-title p em{
    color: #999999;
    font-style: normal;
    font-size: 12px;
}

.code {
    margin-top: 20px;
}

.code .title-box {
    height: 20px;
    margin-bottom: 20px;
    line-height: 20px;
}

.code .title-box h4 {
    float: left;
    font-size: 20px;
    font-weight: normal;
    color: #494949;
}

.code .title-box ul {
    float: left;
    width: 1000px;
    text-align: center;
}

.code .title-box ul li{
    display: inline-block;
    text-align: center;
    margin: 0 35px;
    color: #868686;
}

.code .title-box ul li:hover {
    color: #00a4ff;
    cursor: pointer;
}

.code .title-box a {
    float: right;
    font-size: 12px;
    color: #a5a5a5;
    margin-right: 30px;
}

.code .code-content .code-left {
    float: left;
    margin-right: 15px;
}

.code .code-content .code-left img {
    display: block;
    width: 228px;
    height: 392px;
}

.code  .code-right {
    float: right;
}

.code .code-right .code-right-header img {
    display: block;
    width: 957px;
    height: 100px;
    margin-bottom: 22px;
}

.code .code-right-list li {
    float: left;
    width: 228px;
    height: 270px;
    margin-right: 15px;
    background: #fff;
}

.code .code-right-list .img-box img {
    display: block;
    width: 228px;
    height: 154px;
}

.code .code-right-list .info-title {
    padding: 25px;
}

.code .code-right-list .info-title h4{
    font-weight: normal;
    color: #050505;
    font-size: 14px;
}

.code .code-right-list .info-title p{
    color: #ff7c2d;
    margin-top: 12px;
    font-size: 12px;
}
.code .code-right-list .info-title em{
    color: #999999;
    font-style: normal;
}

.code .code-right-list .last {
    margin-right: 0;
}

.footer {
    height: 417px;
    background: #fff;
    margin-top: 40px;
}

.footer .footer-left{
    float: left;
    width: 426px;
    margin-left: 20px;
    margin-top: 30px;
}

.footer .footer-logo{
    margin-bottom: 25px;
}

.footer .footer-info{
    font-size: 12px;
    line-height: 18px;
    color: #666666;
    margin-bottom: 15px;
}

.footer .footer-app{
    width: 120px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border: 1px solid #00a4ff;
    color: #00a4ff;
}

.footer .footer-about{
    float: right;
    padding: 20px 0;
    margin-left: 120px;
    width: 95px;
    color: #333;
}

.footer .footer-about dt{
    font-size: 16px;
    line-height: 20px;
    margin-bottom: 12px;
}

.footer .footer-about dd{
    font-size: 12px;
    line-height: 1.5;
}